What is the population of North America?

The population of North America was 528,720,588 as of 2012, according to World Atlas. The 2013 population of North America is reported as 565,265,000 by Wikipedia.

North American includes Canada, the United States of America, Mexico, Central America and nearby Caribbean islands. Greenland and Bermuda are often identified as part of North America. North America is the third largest continent by land area and the fourth largest continent by population. It is bordered by the Arctic Ocean, Pacific Ocean, Atlantic Ocean and Caribbean Sea. The continent is located entirely within the Northern Hemisphere and almost entirely within the Western Hemisphere.